u/Karglath

Hello all

I was debating between the Turn 13 and TST air boxes, and the TST seems far easier to install, but the filter on the TST appears to be just a transparent piece of foam?
So I'm wondering how safe is such an airbox to use as a long term thing, not just for occasional track days?

While the Turn 13 v2 still appears to be a pain to install, it uses a more conventional RS660 filter.

I live close to the ocean and ride all year round in all kinds of weather, including rain.

Thanks everyone.

When you enable "Limit charging to 80%" on a Pixel the phone bypasses the battery and draws power directly from the charger, which is great, but;

The problem is that it only works if you cap at 80%. There's no equivalent behavior at 100%.
Charge normally, hit 100% with the phone still plugged in, and you're back to standard float charging, current cycling through the battery whenever you draw load, internal cell heating, micro-cycles accumulating.
That's the worst case state for battery health, and it's exactly what happens during the most common plugged-in scenarios.

Where this hurts:

• Car navigation. Phone plugged in, screen at peak brightness fighting sunlight, GNSS and cellular active, sitting at 100% for the entire drive. Probably the single most common heavy-load plugged-in scenario for normal users.
• Video calls and video streaming while charging.
• Gaming, which other OEMs already address but only via gaming-app gating.
• Any other scenario where the phone is heavily used while plugged in

In all of these, the cell is at 100% with multiple amps cycling through it, heating up from internal I²R losses, and accumulating wear.

Bypass at 100% would eliminate the cycle wear and the internal cell heating entirely. Calendar aging from the high voltage would still happen, but the cycle and thermal components of degradation would be cut off.
That's a tangible benefit on a phone that has to maintain it's battery health for 1000 cycles and Google is committing 7 years of updates for.

The implementation cost is essentially zero. The PMIC supports load-switching (it has to, since it does exactly this at 80%). The fallback logic for handling weak or non-PD chargers already exists (it has to, for the 80% bypass to work reliably across the variety of chargers people actually use). The charge state machine already knows all the relevant states. Extending the trigger condition from "SoC = 80% AND plugged in" to also include "SoC = 100% AND plugged in AND charger sustains load" is a firmware conditional. Not a hardware redesign, not a new feature stack, not a certification problem.

The standard counter is "just use the 80% limit." That costs 20% of usable capacity, which a lot of people can't structure their day around, especially if they travel or have unpredictable access to chargers. The two behaviors should be orthogonal: one feature limits the max SoC for users who want it, a separate behavior bypasses the cell whenever the charger can power the phone directly. The hardware supports both. Only one is currently exposed.

Please consider this for a future feature drop.
It's almost certainly the lowest-effort, highest-leverage battery longevity improvement still on the table.